Machined needle roller bearing NA4980 single 400 mm ID 540 mm OD 140 mm width high-carbon steel inner ring oil holes caged NA49 metric series heavy-duty industrial 500 rpm max open type

Single machined needle roller bearing, 400 mm ID
✔️ 540 mm OD × 140 mm width, high-carbon steel, oil holes

This single caged machined needle roller bearing includes an inner ring and is built for heavy-duty shafts, gearboxes and linear slide unit applications where compact radial profile matters.

✅ Model NA4980, NA49 Metric Series
✅ Inner diameter: 400 mm
✅ Outer diameter: 540 mm
✅ Width: 140 mm
✅ Material: high-carbon steel; inner ring included
✅ Dynamic load capacity: 1,590,000 N; static: 4,270,000 N
✅ Max speed: 500 rpm; open caged machined type with oil holes
✅ Pack size: single bearing; SKU 864098; weight ~1.0 lb

💡 What is a needle roller bearing used for in heavy-duty shaft and linear slide unit applications? Needle roller bearings support high radial loads in tight spaces while keeping shaft alignment accurate. This makes them a handy choice for compact industrial setups. - Ideal for supporting heavy radial loads in shafts, gearbox hubs and linear slide unit guides. - Compact radial profile compares favorably with sealed ball bearing or ceramic options when space is limited. - Often used with an inner ring and oil holes for lubrication in open or caged machined formats, improving service life.